Abstract
In order to meet the requirements of multi-crop harvesting, reduce the loss of harvesting, and improve the quality of harvesting, the device and method of matching and adjusting the rotation speed and forward speed of the pulling reel were designed. On the premise of satisfying the matching regulation, the parameters of the rotary wheel and the cutting table were adjusted so that the rotational speed ratio λ of the harvest crop was in the suitable range of the rotational speed ratio of the crop. The speed ratio was designed as a suitable interval of different crops by experiments and experience, and, in order to meet the requirements, it was designed to optimize the wheel speed. The speed-matching was designed, and through the experiments on the wheel-speed-adjustment error, which was less than 2%, it was designed to meet the design requirements. Crop-harvesting experiments were carried out under rotational speed-matching and a random speed, and the experimental results showed that the loss rate under rotational speed-matching was significantly lower than that under random speeds; the tests showed that the wheel speed designed with speed-matching can effectively reduce the loss rate.
Highlights
Foreign combined harvesters have the advantages of high intelligence and good efficiency
Wu Wenjie et al adopted the method of a three-factor, three-level quadratic-regression orthogonal test and a single-factor test and concluded that the rotational speed and the vertical position and the horizontal position of the rotary reel all had a certain influence on the loss rate of the cutting table [3]
It was concluded that the forward speed and the rotation speed of the rotary wheel has a significant influence on the loss of the cutting table [7]
Summary
Foreign combined harvesters have the advantages of high intelligence and good efficiency. Field trials found that harvesting crops in the field, while the reel speed is designed too high, can increase the impact on grain. Wu Wenjie et al adopted the method of a three-factor, three-level quadratic-regression orthogonal test and a single-factor test and concluded that the rotational speed and the vertical position and the horizontal position of the rotary reel all had a certain influence on the loss rate of the cutting table [3]. Fadlelseed, F.E. carried out field tests on the loss of the cutting table by matching the forward speed of the combined harvester with the rotational speed of the rotary reel. It was concluded that the forward speed and the rotation speed of the rotary wheel has a significant influence on the loss of the cutting table [7]. R.N. and Bruce, D.M. used two cutting tables to harvest rapeseed, adjusted different parameters of cutting tables, measured the loss rate of harvesting at different cutting tables, and compared them to obtain the best parameter combination [8]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
